What are some alternatives?
When comparing SendHub and RingCentral, you can also consider the following products
Twilio - Brings voice and messaging to your web and mobile applications.
Nextiva - Business VoIP, cloud phone systems trusted by more than 150,000 companies. Powered by the leading cloud PBX VoIP platform, Nextiva is rated the best business VoIP service provider.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
FluentStream - FluentStream Technologies is an advanced telecommunications company with a core focus on cloud-based applications.
Bandwidth - Bandwidth offers SIP trunking, Emergency communications, and Voice & Messaging APIs.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!